Photosynthesis Vs. Cellular Respiration

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Photosynthesis and Cellular RespirationPhotosynthesis and respiration are reactions that complement each other in the environment. In reality, they are the same reactions, but they occur in reverse. During photosynthesis, carbon dioxide and water yield glucose and oxygen. Through the respiration process, glucose and oxygen yield carbon dioxide and water. They work well because living organisms supply plants with carbon dioxide, which undergoes photosynthesis and produces glucose, and these plants and bacteria give out oxygen, which all living organisms need for respiration.Photosynthesis and respiration can be illustrated as follows:PhotosynthesisCarbon Dioxide (CO2)+Water(6H2O)+Light energyGlucose (C6H12O6)+…show more content…
During photosynthesis, glucose is produced from converted sunlight energy by plants. In general, the more light, the faster the rate of photosynthesis. However, research many years ago demonstrated that increased light intensity only increased the rate of photosynthesis up to a certain point. Therefore, the relationship of photosynthesis and cellular respiration is nonlinear (Biggs, Edison, Eastin, Brown, Maranville, & Clegg, 1971).Scientific MethodIt is not uncommon for scientists to encounter a problem that cannot be explained. As a result, scientists use another fundamental process that is referred to as the scientific method. What is the scientific method? The scientific method is a way to probe into science by asking questions in a systematic way, which generates a hypothesis with the ultimate goal of improving the understanding of the problem.The following are the steps of the scientific method:Background and observationGenerate a hypothesisConduct an experiment based on the hypothesisData analysis and resultsShare your conclusions with the scientific communityQuestion: Is it possible to examine the relationship between photosynthesis and cellular respiration under controlled experimental conditions? Explain your response in detail.Model AnswerIt is not uncommon for scientists to encounter a problem that cannot be explained. As a result, scientists use another fundamental process that is
Both photosynthesis and cellular respiration are the main pathways of energy transportation in organisms. However, the reactants and the products are exact opposites in photosynthesis and in cellular respiration. In photosynthesis, cells take in carbon dioxide (CO2) and water (H2O) by absorbing energy from the sun, and then the cells release oxygen (O2) and store glucose (C6H12O6). The formula of photosynthesis is: Light energy6CO2+6H2O → C6H12O6+6O2 In cellular respiration, glucose and oxygen are taken into the cells, then they are converted to carbon dioxide, water and ATP energy and some other energy. Some of the ATP energy is used in photosynthesis; a large amount of…show more content…
The light reactions also generate ATP by using chemiosmosis through a process called photosphorylation. The light energy is converted into chemical energy in the form of two compounds, which are NADPH and ATP. The Calvin cycle occurs with the incorporation of carbon dioxide into organic molecules in carbon fixation. In this process, the fixed carbon is reduced with electrons provided by NADPH. The Calvin cycle takes place during daylight hours, in which the NADPH and ATP can be provided. The Calvin cycle occurs in the stroma, while the light reactions occur in the thylakoids. In contrast, there are four metabolic stages happened in cellular respiration, which are the glycolysis, the citric acid cycle, and the oxidative phosphorylation. Glycolysis occurs in the cytoplasm, in which catabolism is begun by breaking down glucose into two molecules of pyruvate. Two molecules of ATP are produced too. Some of they either enter the citric acid cycle (Krebs cycle) or the electron transport chain, or go into lactic acid cycle if there is not enough oxygen, which produces lactic acid. The citric acid cycle occurs in the mitochondrial matrix, which completes the breakdown of glucose by oxidizing a derivative of pyruvate into carbon dioxide. The citric acid cycle produced some more ATPs and other molecules called NADPH and FADPH. After this, electrons are passed to the electron transport chain through

The process of photosynthesis is used by plants and other photosynthetic organisms to produce energy, whereas the process of cellular respiration breaks down the energy for use. Fallout 4 reset quest command. Despite the differences between these two processes, there are some similarities. For example, both processes synthesize and use ATP, the energy currency. A Venn Diagram showing Photosynthesis vs. Cellular Respiration. You can edit this Venn Diagram using Creately diagramming tool and include in your report/presentation/website.